Breeding and Growth Performance of ‘Ningzhi 4’, a New Blackberry Cultivar with High Yield Potential and Good Quality in China
2023
Yaqiong Wu | Wenlong Wu | Chunhong Zhang | Lianfei Lyu | Weilin Li
The thornless blackberry cultivar ‘Ningzhi 4’ was developed by the Institute of Botany, Jiangsu Province and the Chinese Academy of Sciences (Nanjing Botanical Garden Mem. Sun Yat-Sen). The new blackberry cultivar was selected from the ‘Kiowa’ (female parent) and ‘Hull Thornless’ (male parent) F1 hybrid. ‘Ningzhi 4’ had excellent plant characteristics, including thornlessness, semi-erect to erect canes, vigorous growth and good disease resistance. ‘Ningzhi 4’ had large fruit and high yield. In addition, the parents of the superior hybrid plant were further identified by SSR markers, which provided the basis for the fingerprint of the new blackberry cultivar ‘Ningzhi 4’. This is a commercial cultivar to be grown for fruit production for either shipping or local sales. It also has value as a home-garden plant. This unique type of blackberry fruit was a traditional summer fruit. This new cultivar has thornless semi-erect to erect canes and produces high-quality berries with large size, good firmness, excellent flavor, and potential for shipping and postharvest storage. The new blackberry cultivar ‘Ningzhi 4’ is adapted to all areas of southern China and is expected to replace or complement ‘Kiowa’, ‘Hull Thornless’, ‘Chester Thornless’ and ‘Triple Crown’. A local cultivar patent has been approved by the Jiangsu Variety Approval Committee as ‘<i>Rubus</i> spp. Ningzhi 4′ in 2020 (S-SV-RS-014-2020). In the future, ‘Ningzhi 4’ could be promoted as an advantageous thornless blackberry cultivar in the main production regions of China.
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